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Finding the Fourth Proportional to 336,861.76, 505,123.14 and 112,142.04

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Solution

The fourth proportional to 336,861.76, 505,123.14 and 112,142.04 is: 168,156.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,861.76 : 505,123.14 = 112,142.04 : x
  2. Step 2: Convert to fraction form
    336,861.76/505,123.14 = 112,142.04/x
  3. Step 3: Cross multiply
    336,861.76x = 505,123.14 × 112,142.04
  4. Step 4: Simplify right side
    336,861.76x = 56,645,539,791.34
  5. Step 5: Solve for x
    x = 56,645,539,791.34/336,861.76
  6. Step 6: Final answer
    x = 168,156.64

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.